JP2005102655A

JP2005102655A - Rotary drum type tea manufacturing apparatus

Info

Publication number: JP2005102655A
Application number: JP2003344060A
Authority: JP
Inventors: Yoshikazu Nakamura; 義和中村; Masayuki Yamamoto; 昌之山本
Original assignee: Terada Seisakusho Co Ltd
Current assignee: Terada Seisakusho Co Ltd
Priority date: 2003-10-02
Filing date: 2003-10-02
Publication date: 2005-04-21

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tea manufacturing apparatus pursuing completely no spill of tea leaves and keeping working environment hygienic. <P>SOLUTION: This tea manufacturing apparatus is composed of a rotary drum made by transversely installing the horizontal as a rotating shaft, opening the center of a side wall of one side and bringing its periphery to a circular side wall, and a fixing board to close the opening part of the side wall of the rotary drum. A fixing board engaging frame is projected to the inside from the circular side wall of the rotary drum to be engaged, and a skirt is fixed to the inner wall of the circular side wall to slide into the fixing board engaging frame. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、回転胴と固定板との嵌合部で、茶葉や茶粉がこぼれることを防止した回転胴型製茶装置に関するものである。 The present invention relates to a rotating drum type tea making apparatus that prevents tea leaves and tea powder from spilling at a fitting portion between a rotating drum and a fixed plate.

回転胴型製茶装置には、製茶合組機や製茶中揉機等がある。双方ともに、回転胴の一方の側壁の中央が開放された環状側壁となっており、側壁の開放部を固定板で閉鎖し、回転胴の環状支持枠と固定板の固定板嵌合枠が摺動するように、嵌め合わせて、支持する。 Examples of the rotary barrel type tea making apparatus include a tea making machine and a tea making machine. In both cases, the center of one side wall of the rotating drum is an annular side wall, the open portion of the side wall is closed with a fixing plate, and the annular support frame of the rotating drum and the fixing plate fitting frame of the fixing plate slide. Fit and support to move.

製茶合組機の場合は、固定板に茶葉投入・取出口を設け、茶葉投入・取出口から茶葉を回転胴内へ投入し、回転胴を回転させて、回転胴内で茶葉を混合して、茶葉投入・取出口から茶葉を取り出す。 In the case of a tea making machine, tea leaves are placed on the fixed plate, and the tea leaves are inserted into the rotating drum. The tea leaves are inserted into the rotating drum, and the rotating drum is rotated to mix the tea leaves within the rotating drum. Take out the tea leaves from the tea leaf loading / unloading exit.

製茶中揉機の場合は、固定板に茶葉投入口と熱風吹込口を設け、熱風発生装置で発生させた熱風を熱風吹込口より回転胴内へ吹き込み、茶葉を乾燥しながら、回転胴と回転軸（回転胴とは別駆動）に取付けた揉手の間で揉み込む。回転胴の他方側壁は金網になっており、吸引ファンで排気する。処理済の茶葉は、回転胴の周壁に備えた開閉自在な取出扉から取り出す。 In the case of a tea making machine, a tea leaf inlet and hot air inlet are provided on the fixed plate, hot air generated by the hot air generator is blown into the rotating drum from the hot air inlet, and the tea drum is dried while rotating the rotating drum and rotating shaft. Squeeze between the grips attached to the drive (separate drive from the rotating drum). The other side wall of the rotating drum is a wire mesh and is exhausted by a suction fan. The treated tea leaves are taken out from an openable / closable take-out door provided on the peripheral wall of the rotating drum.

従来より、製茶中揉機では、回転胴内の茶葉（茶粉を含む）が回転胴の環状支持枠と固定板の固定板嵌合枠の間からこぼれることが問題となっており、この隙間をふさぐため、図７のように、扇状板と厚肉部よりなる茶葉のこぼれ止め装置５１があった。これは、製茶中揉機の固定板に、扇状板と厚肉部よりなる茶葉のこぼれ止め装置５１をボルト５２で固定するものである（例えば、特許文献１）。また、環状支持枠と固定板嵌合枠の間から茶葉がこぼれにくくなるように、ポケットを設けた茶葉のこぼれ止め装置もあった（例えば、特許文献２）。
実開昭５８−１２９０号公報実開平７−１７８４号公報 Conventionally, in tea making machines, tea leaves (including tea powder) in the rotating drum have spilled from between the annular support frame of the rotating drum and the fixed plate fitting frame of the fixing plate. As shown in FIG. 7, there was a tea leaf spill-proof device 51 comprising a fan-shaped plate and a thick-walled portion. This is to fix a tea leaf spill-proof device 51 made of a fan-shaped plate and a thick portion to a fixing plate of a tea making machine with bolts 52 (for example, Patent Document 1). There is also a tea leaf spill-proof device provided with a pocket so that tea leaves are less likely to spill from between the annular support frame and the fixed plate fitting frame (for example, Patent Document 2).
Japanese Utility Model Publication No. 58-1290 Japanese Utility Model Publication No. 7-1784

特許文献１の茶葉のこぼれ止め装置を用いることで、茶葉がこぼれることは少なくなったが、扇状板と環状側壁の間に隙間ができ、その隙間へ入った茶葉が環状支持枠と固定板嵌合枠の間へ移動して茶葉がこぼれ、茶葉がまったくこぼれなくなるまでは至らなかった。特に、回転胴型製茶装置の中でも製茶中揉機の場合、熱風を送風し、排気を吸引しており、茶葉が回転胴内を飛びまわり、少しの隙間でも茶葉がこぼれてしまうという問題があった。本発明では、茶葉がまったくこぼれなくなることを追求し、作業環境を衛生的に保つことを課題としている。 By using the tea leaf spill prevention device of Patent Document 1, the tea leaf is less likely to spill, but there is a gap between the fan-shaped plate and the annular side wall, and the tea leaf that enters the gap is fitted with the annular support frame and the fixed plate. It didn't happen until the tea leaves spilled into the frame and no tea leaves spilled. In particular, in the case of the tea making machine among the rotating drum type tea making equipment, there was a problem that the hot air was blown and the exhaust was sucked, and the tea leaves flew around the rotating drum and the tea leaves spilled even in a small gap. . An object of the present invention is to keep the working environment hygienic by pursuing that tea leaves do not spill at all.

本発明では、第１の手段として、水平を回転軸として横架し、一方の側壁の中央を開放し、その周囲を環状側壁とした回転胴と、回転胴の側壁の開放部を閉鎖する固定板とよりなり、回転胴の環状側壁より内側へ固定板嵌合枠を突出して嵌合し、環状側壁の内壁にスカートを固定し、固定板嵌合枠に摺動させる。第２の手段として、水平を回転軸として横架し、一方の側壁の中央を開放し、その周囲を環状側壁とした回転胴と、回転胴の側壁の開放部を閉鎖する固定板とよりなり、回転胴の環状側壁より内側へ固定板嵌合枠を突出して嵌合し、固定板嵌合枠にスカートを固定し、環状側壁の内壁に摺動させる。 In the present invention, as a first means, a horizontal body is used as a rotating shaft, a rotating cylinder having one side wall opened at its center and an annular side wall around it, and a fixed part for closing the opening of the side wall of the rotating cylinder. The fixed plate fitting frame protrudes and fits inward from the annular side wall of the rotating drum, the skirt is fixed to the inner wall of the annular side wall, and is slid on the fixed plate fitting frame. As a second means, it is composed of a rotary drum that is horizontally mounted with the horizontal axis as the rotation axis, the center of one side wall is opened and the periphery thereof is an annular side wall, and a fixed plate that closes the open portion of the side wall of the rotary drum. The fixed plate fitting frame protrudes and fits inward from the annular side wall of the rotating drum, the skirt is fixed to the fixed plate fitting frame, and is slid on the inner wall of the annular side wall.

第３の手段として、第１又は２の手段のスカートを可撓性部材で形成する。第４の手段として、第１、２又は３の手段のスカートを摩擦係数が小さい部材で形成する。 As a third means, the skirt of the first or second means is formed of a flexible member. As a fourth means, the skirt of the first, second or third means is formed of a member having a small friction coefficient.

環状側壁と固定板嵌合枠の隙間を覆うことができ、茶葉がこぼれなくなる。それによって、歩留まりが良くなり、更には、作業環境を衛生的に保つことができる。 The gap between the annular side wall and the fixed plate fitting frame can be covered, and the tea leaves are not spilled. As a result, the yield is improved, and the working environment can be kept hygienic.

まず、製茶合組機を例にして説明する。図１は製茶合組機を周壁側から見た図、図２は製茶合組機を側壁側から見た図、図３は嵌合部の詳細図である。１は茶葉を収容する回転胴であり、回転胴１は周壁２、側壁３、環状側壁４、環状支持枠５よりなっており、環状側壁４の内側の開口部へ固定板６の固定板嵌合枠７を環状側壁４より内側へ突出するように嵌め込む。回転胴１は駆動手段（図示しない）によって水平軸を中心に回転する。固定板６は機枠８に固定されている。固定板６には茶葉投入・取出口９を開口し、投入・取出シュート１０の傾きを替える事で投入と取出を切り替える。本実施例では、投入口と取出口を兼用としたが、それぞれ投入口と取出口を設けても良い。 First, a tea making machine will be described as an example. 1 is a view of the tea making machine as viewed from the peripheral wall side, FIG. 2 is a view of the tea making machine from the side wall side, and FIG. 3 is a detailed view of the fitting portion. Reference numeral 1 denotes a rotating drum that accommodates tea leaves. The rotating drum 1 includes a peripheral wall 2, a side wall 3, an annular side wall 4, and an annular support frame 5, and a fixed plate 6 is fitted into the opening inside the annular side wall 4. The frame 7 is fitted so as to protrude inward from the annular side wall 4. The rotating drum 1 is rotated around a horizontal axis by a driving means (not shown). The fixed plate 6 is fixed to the machine casing 8. A tea leaf loading / unloading port 9 is opened in the fixed plate 6 and switching between loading and unloading is performed by changing the inclination of the loading / unloading chute 10. In this embodiment, the input port and the outlet are used together, but an input port and an outlet may be provided, respectively.

１２はスカートであり、スカート１２が固定板嵌合枠７に接するようにして、環状側壁４の内側の全周にわたって固定する（複数箇所にボルト１３を取付ける）。スカート１２に張りを持たせて撓ませ、固定板嵌合枠７と環状側壁４の隙間をなくすように設置する。 Reference numeral 12 denotes a skirt, which is fixed over the entire inner circumference of the annular side wall 4 so that the skirt 12 contacts the fixing plate fitting frame 7 (bolts 13 are attached to a plurality of locations). The skirt 12 is stretched and bent so that the gap between the fixed plate fitting frame 7 and the annular side wall 4 is eliminated.

スカート１２の材質は、摺動する固定板嵌合枠７に対して摩擦係数の小さいもの（１．０以下）を選定することが重要である。摩擦抵抗が大きいと負荷が増大し、スカート１２の摩耗を早め、茶こぼれ防止の性能を維持できなくなる。例えば、ゴム、樹脂（ウレタン樹脂、塩化ビニル等）、布等の柔軟性がある材質がいい。 It is important to select a material for the skirt 12 having a small friction coefficient (1.0 or less) with respect to the sliding fixed plate fitting frame 7. If the frictional resistance is large, the load increases, wear of the skirt 12 is accelerated, and tea spill prevention performance cannot be maintained. For example, a flexible material such as rubber, resin (urethane resin, vinyl chloride, etc.) or cloth is preferable.

図４のようにスカート１２’を固定板嵌合枠７にボルト１３’で取付け、スカート１２’を環状側壁４と摺動させてもよく、その場合はスカート１２’を全周に設けてもよいが、こぼれる可能性が高い下半分のみに設けてもよい。 As shown in FIG. 4, the skirt 12 'may be attached to the fixed plate fitting frame 7 with bolts 13', and the skirt 12 'may be slid with the annular side wall 4. In this case, the skirt 12' may be provided on the entire circumference. Although it is good, you may provide only in the lower half with a high possibility of spilling.

上記のような製茶合組機に、投入・取出シュート１０の回転胴１内を低くして、製茶された茶葉１５を投入する。回転胴１を回転させると、回転胴１の回転及び回転胴１内部に設けた桟（図示しない）により茶葉１５をかき上げ、上方で落とすことを繰り返しながら、茶葉１５を混合する。茶葉１５が混合されたところで、投入・取出シュート１０の傾きを変え、投入・取出シュート１０の取出端に大海袋（茶の出荷用袋）１４を設置して、茶葉１５を取り出す。このように混合することで大きな茶や小さな茶（粉茶）が混ざり、各大海袋の大きさがほぼ同じになる。 In the tea making machine as described above, the inside of the rotary drum 1 of the charging / discharging chute 10 is lowered, and the tea leaves 15 that have been made are put into the tea making machine. When the rotating drum 1 is rotated, the tea leaf 15 is mixed while repeating the rotation of the rotating drum 1 and the scoop (not shown) provided inside the rotating drum 1 and lifting the tea leaves 15 and dropping them upward. When the tea leaves 15 are mixed, the tilt of the charging / discharging chute 10 is changed, and a large sea bag (tea shipping bag) 14 is installed at the extracting end of the charging / discharging chute 10 to take out the tea leaves 15. By mixing in this way, large tea and small tea (powdered tea) are mixed, and the size of each large sea bag is almost the same.

他の実施例として、製茶中揉機が挙げられる。製茶中揉機は、製茶合組機とほぼ同様の構造をしており、図５、６を参照して説明する。２１は回転胴であり、茶葉を収容する。回転胴２１は周壁２２、側壁２３、環状側壁２４、環状支持枠２５よりなっており、環状側壁２４の内側の開口部へ固定板２６を嵌め、固定板嵌合枠２７を環状側壁２４より内側へ突出するように嵌め込む。回転胴２１は駆動手段（図示しない）によって主軸３８を中心に回転する。固定板２６は機枠２８に固定されている。固定板２６には投入口２９を開口し、投入シュート３０によって回転胴２１内へ投入する。周壁２２の一部が取出扉３３となっており、取出時にはこの取出扉３３を開いて、茶葉を取り出す。茶葉は搬送装置３９上に取り出し、搬送装置３９によって次の製茶機へ搬送する。３４は固定板２６の一部の金網であり、熱風発生装置３５で発生した熱風を金網３４より回転胴２１内へ送り込む。４０はファンであり、側壁２３とファン４０の接続部は金網で構成されており、ファン４０によって回転胴２１内の空気を吸引する。３７は主軸３８に軸着された揉手であり、回転胴２１とは異なる回転数で同方向へ回転する。 Another example is a tea making machine. The tea making machine has substantially the same structure as the tea making machine and will be described with reference to FIGS. Reference numeral 21 denotes a rotating drum, which accommodates tea leaves. The rotary drum 21 includes a peripheral wall 22, a side wall 23, an annular side wall 24, and an annular support frame 25. A fixing plate 26 is fitted into an opening inside the annular side wall 24, and the fixing plate fitting frame 27 is located inside the annular side wall 24. Fit so that it protrudes into The rotating drum 21 is rotated around the main shaft 38 by driving means (not shown). The fixed plate 26 is fixed to the machine frame 28. An opening 29 is opened in the fixed plate 26, and it is introduced into the rotary drum 21 by an introduction chute 30. A part of the peripheral wall 22 serves as a take-out door 33. When taking out, the take-out door 33 is opened to take out the tea leaves. The tea leaves are taken out on the transport device 39 and transported to the next tea making machine by the transport device 39. A wire mesh 34 is a part of the fixed plate 26, and the hot air generated by the hot air generator 35 is sent into the rotary drum 21 from the wire mesh 34. Reference numeral 40 denotes a fan, and a connecting portion between the side wall 23 and the fan 40 is formed of a wire mesh, and the air in the rotary drum 21 is sucked by the fan 40. Reference numeral 37 denotes a grip that is attached to the main shaft 38 and rotates in the same direction at a rotational speed different from that of the rotary drum 21.

３２はスカートであり、スカート３２が固定板嵌合枠２７に接するようにして、環状側壁２４の内側の全周にわたって固定する（複数箇所にボルトを取付ける）。スカート３２を張りを持たせて撓ませ、固定板嵌合枠２７と環状側壁２４の隙間をなくすように設置する。 Reference numeral 32 denotes a skirt, which is fixed over the entire inner periphery of the annular side wall 24 so that the skirt 32 contacts the fixing plate fitting frame 27 (bolts are attached to a plurality of locations). The skirt 32 is bent and bent so that the gap between the fixed plate fitting frame 27 and the annular side wall 24 is eliminated.

スカート３２の材質は、摺動する固定板嵌合枠２７に対して摩擦係数の小さいもの（１．０以下）を選定することが重要である。摩擦抵抗が大きいと負荷が増大し、スカート３２の摩耗を早め、茶こぼれ防止の性能を維持できない。 It is important to select a material for the skirt 32 having a small friction coefficient (1.0 or less) with respect to the sliding fixed plate fitting frame 27. If the frictional resistance is large, the load increases, the wear of the skirt 32 is accelerated, and the tea spill prevention performance cannot be maintained.

製茶中揉機では熱風を吹き込むため、スカート３２は熱に強い材料であることも必要である。熱に弱いと、熱風発生装置３５より吹き込まれる熱風により変形してしまう。また、摩擦によって更に熱が加えられるため、変形が助長されてしまう。摩擦、熱風等による熱に強い材料でスカート３２を形成しなければならない。 In the tea making machine, hot air is blown, so that the skirt 32 needs to be a heat resistant material. If it is weak to heat, it will be deformed by hot air blown from the hot air generator 35. Further, since heat is further applied by friction, deformation is promoted. The skirt 32 must be formed of a material resistant to heat caused by friction, hot air, or the like.

本実施例でも、前記実施例と同様に、スカートを固定板嵌合枠２７にボルト（図示しない）で取付け、スカートを環状側壁と摺動させてもよく、スカートを全周に設けなくても、こぼれる可能性が高い下半分に設けてもよい。 In this embodiment as well, the skirt may be attached to the fixing plate fitting frame 27 with bolts (not shown) and the skirt may be slid with the annular side wall, or the skirt may not be provided on the entire circumference. , It may be provided in the lower half where the possibility of spilling is high.

製茶中揉機へは通常、製茶揉捻機で水分を均一にした後の茶葉４１を、投入シュート３０を介して投入する。熱風発生装置３５による熱風乾燥と、揉手３７による揉み込みにより、製茶をしていく。回転胴２１の回転による上下運動と、吹き込む熱風により、乾燥が進んだ茶葉４１は回転胴２１内を飛び回り、ファン４０による排気のバランスが崩れると、茶葉４１は狭い隙間へ入り込もうとする。このとき、従来の製茶中揉機では回転胴２１と固定板２６の間に隙間があり、茶葉が入り込んでしまったが、本発明の製茶中揉機では回転胴２１と固定板２６の間の隙間をスカート３２で閉じられているため、茶葉４１はスカート３２に当たり、回転胴２１内へ戻っていく。製茶中に、茶粉の一部は熱風と一緒に排気され、ファン４０で吸引され、サイクロン３６で排気と分離され、茶粉のみ搬送装置３９上へ取り出す。所定時間が経過、又は所定含水率になったとき、茶葉４１を製茶中揉機の取出扉３３を開いて搬送装置３９上へ取り出し、排気から分離された茶粉と一緒に次の製茶機械へ搬送する。 Usually, the tea leaves 41 after the water has been made uniform by the tea making machine are put into the tea making machine through the charging chute 30. Tea is made by hot-air drying by the hot-air generator 35 and mastication by the hand 37. Due to the vertical movement caused by the rotation of the rotary drum 21 and the hot air blown, the dried tea leaves 41 fly around the rotary drum 21 and when the exhaust balance of the fan 40 is lost, the tea leaves 41 try to enter narrow gaps. At this time, in the conventional tea making machine, there is a gap between the rotating drum 21 and the fixed plate 26, and the tea leaves have entered, but in the tea making machine of the present invention, the gap between the rotating drum 21 and the fixed plate 26 is set. Since the tea leaves 41 are closed by the skirt 32, the tea leaves 41 hit the skirt 32 and return into the rotary drum 21. During tea making, part of the tea powder is exhausted together with hot air, sucked by the fan 40, separated from the exhaust by the cyclone 36, and only the tea powder is taken out onto the transport device 39. When the predetermined time has passed or the predetermined moisture content has been reached, the tea leaf 41 is taken out onto the transport device 39 by opening the take-out door 33 of the tea making machine and transported to the next tea making machine together with the tea powder separated from the exhaust. To do.

製茶合組機を周壁側から見た図。The figure which looked at the tea manufacturing machine from the peripheral wall side. 製茶合組機を固定板側から見た図。The figure which looked at the tea manufacturing machine from the fixed-plate side. スカート部分の詳細図。Detailed view of the skirt part. スカート部分の別の実施例の詳細図。FIG. 5 is a detailed view of another embodiment of the skirt portion. 製茶中揉機を周壁側から見た図。The figure which looked at the tea making machine from the surrounding wall side. 製茶中揉機を固定板側から見た図。The figure which looked at the tea making machine from the fixed-plate side. 従来の技術の詳細図。Detailed view of conventional technology.

符号の説明Explanation of symbols

１回転胴
２周壁
３側壁
４環状側壁
５環状支持枠
６固定板
７固定板嵌合枠
８機枠
９茶葉投入・取出口
１０投入・取出シュート
１１コロ
１２、１２’ スカート
１３、１３’ ボルト
１４大海袋
１５茶葉
２１回転胴
２２周壁
２３側壁
２４環状側壁
２５環状支持枠
２６固定板
２７固定板嵌合枠
２８機枠
２９投入口
３０投入シュート
３１コロ
３２スカート
３３取出扉
３４金網
３５熱風発生装置
３６サイクロン
３７揉手
３８主軸
３９搬送装置
４０ファン
４１茶葉
５１扇状板と厚肉部よりなる茶葉のこぼれ止め装置
５２ボルト
５３固定板
５４側壁 DESCRIPTION OF SYMBOLS 1 Rotating drum 2 Peripheral wall 3 Side wall 4 Annular side wall 5 Annular support frame 6 Fixed plate 7 Fixed plate fitting frame 8 Machine frame 9 Tea leaf loading / unloading port 10 Loading / unloading chute 11 Roller 12, 12 'Skirt 13, 13' Bolt 14 Large sea bag 15 Tea leaf 21 Rotating drum 22 Circumferential wall 23 Side wall 24 Annular side wall 25 Annular support frame 26 Fixed plate 27 Fixed plate fitting frame 28 Machine frame 29 Input port 30 Input chute 31 Roller 32 Skirt 33 Taking out door 34 Wire net 35 Hot air generator 36 Cyclone 37 Spear 38 Main shaft 39 Conveying device 40 Fan 41 Tea leaf 51 Tea leaf spill prevention device consisting of a fan-shaped plate and thick part 52 Bolt 53 Fixing plate 54 Side wall

Claims

水平を回転軸として横架し、一方の側壁の中央を開放し、その周囲を環状側壁とした回転胴と、回転胴の側壁の開放部を閉鎖する固定板とよりなり、回転胴の環状側壁より内側へ固定板嵌合枠を突出して嵌合し、環状側壁の内壁にスカートを固定し、固定板嵌合枠に摺動させることを特徴とする回転胴型製茶装置。 The rotary cylinder is horizontally mounted with the horizontal axis as the rotation axis, the center of one side wall is opened, and the periphery of the rotary cylinder has an annular side wall, and a fixed plate that closes the opening of the side wall of the rotary cylinder. A rotating body type tea making apparatus, wherein a fixed plate fitting frame is protruded and fitted to the inner side, a skirt is fixed to an inner wall of an annular side wall, and is slid on a fixed plate fitting frame.

水平を回転軸として横架し、一方の側壁の中央を開放し、その周囲を環状側壁とした回転胴と、回転胴の側壁の開放部を閉鎖する固定板とよりなり、回転胴の環状側壁より内側へ固定板嵌合枠を突出して嵌合し、固定板嵌合枠にスカートを固定し、環状側壁の内壁に摺動させることを特徴とする回転胴型製茶装置。 The rotary cylinder is horizontally mounted with the horizontal axis as the rotation axis, the center of one side wall is opened, and the periphery of the rotary cylinder has an annular side wall, and a fixed plate that closes the opening of the side wall of the rotary cylinder. A rotating barrel type tea making apparatus characterized in that the fixed plate fitting frame protrudes and is fitted to the inner side, the skirt is fixed to the fixed plate fitting frame, and is slid on the inner wall of the annular side wall.

スカートを可撓性部材で形成することを特徴とする請求項１又は２記載の回転胴型製茶装置。 3. The rotating drum type tea making apparatus according to claim 1, wherein the skirt is formed of a flexible member.

スカートを摩擦係数が小さい部材で形成することを特徴とする請求項１、２又は３記載の回転胴型製茶装置。

4. A rotating barrel type tea making apparatus according to claim 1, wherein the skirt is formed of a member having a small friction coefficient.